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authorChristoph Hellwig <hch@lst.de>2008-08-11 09:48:57 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2008-10-23 05:13:00 -0400
commit4ea3ada2955e4519befa98ff55dd62d6dfbd1705 (patch)
treeb473278d0df8d869d183fbc0e4a1a07585de240a /include/linux
parent3a8cff4f026c0b98bee6291eb28d4df42feb76dc (diff)
[PATCH] new helper: d_obtain_alias
The calling conventions of d_alloc_anon are rather unfortunate for all users, and it's name is not very descriptive either. Add d_obtain_alias as a new exported helper that drops the inode reference in the failure case, too and allows to pass-through NULL pointers and inodes to allow for tail-calls in the export operations. Incidentally this helper already existed as a private function in libfs.c as exportfs_d_alloc so kill that one and switch the callers to d_obtain_alias. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/dcache.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index efba1de629ac..2404257d6c67 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -231,6 +231,7 @@ extern struct dentry * d_alloc(struct dentry *, const struct qstr *);
231extern struct dentry * d_alloc_anon(struct inode *); 231extern struct dentry * d_alloc_anon(struct inode *);
232extern struct dentry * d_splice_alias(struct inode *, struct dentry *); 232extern struct dentry * d_splice_alias(struct inode *, struct dentry *);
233extern struct dentry * d_add_ci(struct dentry *, struct inode *, struct qstr *); 233extern struct dentry * d_add_ci(struct dentry *, struct inode *, struct qstr *);
234extern struct dentry * d_obtain_alias(struct inode *);
234extern void shrink_dcache_sb(struct super_block *); 235extern void shrink_dcache_sb(struct super_block *);
235extern void shrink_dcache_parent(struct dentry *); 236extern void shrink_dcache_parent(struct dentry *);
236extern void shrink_dcache_for_umount(struct super_block *); 237extern void shrink_dcache_for_umount(struct super_block *);